docs: def exportdb(outdir):
      """Export all anchore images to JSON files"""
      ecode = 0
      try:
          imgdir = os.path.join(outdir, "images")
          feeddir = os.path.join(outdir, "feeds")
          storedir = os.path.join(outdir, "storedfiles")
  
          for d in [outdir, imgdir, feeddir, storedir]:
              if not os.path.exists(d):
                  os.makedirs(d)
  
          anchore_print("exporting images...")
          imagelist = anchore_utils.get_image_list().keys()
          for imageId in imagelist:
              thefile = os.path.join(imgdir, imageId+".json")
              if not os.path.exists(thefile):
                  with open(thefile, 'w') as OFH:
                      OFH.write(json.dumps(contexts['anchore_db'].load_image_new(imageId)))
  
              stored_namespaces = contexts['anchore_db'].load_files_namespaces(imageId)
              for namespace in stored_namespaces:
                  stored_files = contexts['anchore_db'].load_files_tarfile(imageId, namespace)
                  if os.path.exists(stored_files):
                      thedir = os.path.join(storedir, imageId, namespace)
                      if not os.path.exists(thedir):
                          os.makedirs(thedir)
                      thefile = os.path.join(thedir, "stored_files.tar.gz")
                      shutil.copy(stored_files, thefile)
  
          anchore_print("exporting feeds...")
          feedmeta = contexts['anchore_db'].load_feedmeta()
          thefile = os.path.join(feeddir, "feedmeta.json")
          with open(thefile, 'w') as OFH:
              OFH.write(json.dumps(feedmeta))
  
          for feed in feedmeta:
              feedobj = feedmeta[feed]
              for group in feedobj['groups']:
                  groupobj = feedobj['groups'][group]
                  datafiles = groupobj.pop('datafiles', [])
                  for datafile in datafiles:
                      thedir = os.path.join(feeddir, feed, group)
                      if not os.path.exists(thedir):
                          os.makedirs(thedir)
                      thefile = os.path.join(thedir, datafile)
                      if not os.path.exists(thefile):
                          with open(thefile, 'w') as OFH:
                              OFH.write(json.dumps(contexts['anchore_db'].load_feed_group_data(feed, group, datafile)))
  
      except Exception as err:
          anchore_print_err("operation failed: " + str(err))
          ecode = 1
  
      sys.exit(ecode)